CN214500117U

CN214500117U - Ball valve casting

Info

Publication number: CN214500117U
Application number: CN202120217730.2U
Authority: CN
Inventors: 季豪敏; 季奇章
Original assignee: Wenzhou Wanhong Valve Co ltd
Current assignee: Wenzhou Wanhong Valve Co ltd
Priority date: 2021-01-26
Filing date: 2021-01-26
Publication date: 2021-10-26
Anticipated expiration: 2031-01-26

Abstract

The application relates to a ball valve casting part, which comprises a valve casing, wherein a ball cavity for placing a valve ball is arranged in the valve casing, a water channel for water flow to pass through is formed in the valve casing, the water channel penetrates through the valve casing and is communicated with the ball cavity, a valve hole for a valve rod to pass through is formed in the inner wall of the ball cavity, a waterproof hammer casing is arranged on the valve casing, a cavity is formed in the waterproof hammer casing, a water hole is formed in the valve casing, and the cavity is communicated with the water channel through the water hole; along the direction of keeping away from the water hole, be equipped with sliding block, fixed magnet in the cavity in proper order, the sliding block includes sliding magnet, and sliding magnet is homopolar relative with fixed magnet, the circumference outer wall and the cavity inner wall sliding seal of sliding block are connected. This ball valve casting adopts slip magnet, decides magnet, makes it still have better effect that resets after long-time operation, prolongs the life of this ball valve casting, and this ball valve casting has better corrosion resistance, leakproofness simultaneously.

Description

Ball valve casting

Technical Field

The application relates to the field of ball valve accessories, especially relates to a ball valve casting.

Background

Sudden shut-offs and stops of valves, faucets or pumps may cause water hammer, generate loud noise and even damage to system components. The waterproof hammer ball valve is characterized in that a waterproof hammer structure is arranged at the stagnant water end of the ball valve, and the waterproof hammer ball valve is arranged on a pipeline, so that the water hammer phenomenon can be avoided in the pipeline.

The utility model patent of the utility model discloses a water hammer ball valve is disclosed for CN209762311U to the bulletin number, relates to ball valve technical field, and its technical scheme main points are: including main part, spheroid and valve rod, the inside water course that offers the water supply and flow through of main part, the spheroid rotates to be connected inside the main part, and the spheroid separates into inhalant canal and exhalant canal with the water course, has seted up the connecting hole on the spheroid, the valve rod rotate connect in the main part and with spheroid fixed connection, set up threaded hole on the lateral wall of main part, threaded hole department threaded connection has waterproof hammer relief valve, the water inlet and the inhalant canal UNICOM of waterproof hammer relief valve

In view of the above-mentioned related technologies, the inventor believes that when the waterproof hammer ball valve works and pressure reaches the sealing rod, the sealing rod can slide in the through hole as soon as the spring contracts, and the sealing rod is driven to reset by the elastic force of the spring. The elasticity of the spring is easy to weaken after the spring is used for a long time, and the requirement of resetting cannot be met.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that the elasticity is weakened easily after the spring is used for a long time, and the requirement of resetting cannot be met, the application provides a ball valve casting.

The application provides a ball valve casting adopts following technical scheme:

the utility model provides a ball valve casting, includes the valve casing, the inside ball chamber that is used for placing the valve ball that is equipped with of valve casing, set up the water course that supplies rivers to pass through on the valve casing, the water course runs through the valve casing, water course and ball chamber intercommunication, ball intracavity wall link up and is equipped with the valve opening that supplies the valve rod to pass, its characterized in that: the water hammer is characterized in that a waterproof hammer shell is arranged on the valve shell, a cavity is arranged in the waterproof hammer shell, a water hole is formed in the valve shell, and the cavity is communicated with the water channel through the water hole; along the direction of keeping away from the water hole, be equipped with the sliding block in the cavity in proper order, decide magnet, the sliding block includes sliding magnet, sliding magnet is relative with deciding the magnet homopolar, the circumference outer wall and the cavity inner wall sliding seal of sliding block are connected.

Through adopting above-mentioned technical scheme, when this ball valve casting used, the water course both ends respectively with the pipeline intercommunication, the valve ball is installed in the ball intracavity, the valve rod wear to locate in the valve hole and its tip fixed with the ball valve, the staff drives the valve ball through rotating the valve rod and rotates, makes the water course intercommunication or close. When the valve ball is rotated to communicate the water channel, water pressure reaches the sliding block through the water hole, and water pressure makes the sliding block slide to the direction of being close to the fixed magnet along the inner wall of cavity to cushion the pipeline internal pressure, prevent that the water hammer phenomenon from appearing. The homopolar of fixed magnet and slip magnet is relative, and the repulsion between fixed magnet and the slip magnet orders about the slip magnet and slides towards the direction in water hole, makes the sliding block reset. The sliding magnet and the fixed magnet are permanent magnets, and the sliding magnet and the fixed magnet can still keep a better reset effect compared with a spring after long-time operation.

Optionally, the sliding block still includes piston plate, sealing washer, the circumference outer wall of piston plate is equipped with the mounting groove, the sealing washer sets up in the mounting groove.

Through adopting above-mentioned technical scheme, the mounting groove is spacing in the circumference of piston plate with the sealing washer, and the piston plate passes through the inner wall of sealing washer butt cavity, makes the inner wall of piston plate and cavity form the sliding seal relation, makes the water in the water course be difficult for getting into between sliding block and the fixed magnet along the gap between piston plate and the cavity inner wall, causes the trouble.

Optionally, a positioning bump matched with the water hole is arranged on the surface, facing the water hole, of the piston plate, and the positioning bump is opposite to the water hole.

By adopting the technical scheme, when the piston plate is positioned at the orifice of the water hole, the positioning lug is positioned in the water hole, the positioning lug just plugs the water hole, so that the piston plate plugs the water hole through the positioning lug to form positioning, and meanwhile, the sealing effect is further achieved.

Optionally, the valve casing outer wall is equipped with the collar, the collar sets up along the circumference in water hole, the outer wall of waterproof hammer shell and the inner wall threaded connection of collar.

Through adopting above-mentioned technical scheme, the outer wall of waterproof hammer shell and the inner wall threaded connection of collar make waterproof hammer shell can follow the valve casing and take off, make things convenient for the dismouting of waterproof hammer shell.

Optionally, the valve casing inner wall is equipped with the polytetrafluoroethylene layer.

Through adopting above-mentioned technical scheme, the polytetrafluoroethylene layer has better corrosion resisting property, improves the corrosion resistance of valve casing inner wall, makes the valve casing be applicable to the pipeline that has corrosive fluids.

Optionally, a sealing ring is arranged on the inner wall of the valve hole in the circumferential direction.

By adopting the technical scheme, the valve hole is communicated with the water channel, so that when the valve shaft is arranged in the valve hole in a penetrating manner, the inner ring of the sealing ring is abutted against the outer wall of the valve shaft to establish a rotary sealing relation, and the fluid in the water channel is not easy to leak along the valve hole.

Optionally, flanges are arranged at two ends of the water channel, and fixing holes for the fixing pieces to pass through are arranged on the flanges

Through adopting above-mentioned technical scheme, during the valve casing installation, through wearing to establish the bolt in the fixed orifices, through screwing up bolt and nut with flange and pipe connection, water course and pipeline intercommunication. Fix valve casing and pipeline through the flange, make fixed more firm, the difficult weeping of junction of water course both ends and pipeline section simultaneously.

Optionally, a positioning shaft is arranged in the ball cavity, and the axis of the positioning shaft coincides with the axis of the valve hole.

Through adopting above-mentioned technical scheme, the location axle is located on the valve ball, and is more steady when making the valve ball rotate.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the sliding magnet and the fixed magnet are arranged, so that the reset effect is good after the long-time operation;

2. the waterproof hammer shell is convenient to disassemble and assemble by arranging the mounting ring;

3. through the arrangement of the sealing ring, liquid in the water channel is not easy to leak along the valve hole.

Drawings

FIG. 1 is an overall view of a ball valve casting according to an embodiment of the present application.

Fig. 2 is a cross-sectional view taken along line a-a of fig. 1.

Fig. 3 is an enlarged view at B of fig. 2.

Description of reference numerals: 1. a valve housing; 12. a ball cavity; 121. positioning the shaft; 13. a water channel; 14. a valve bore; 15. a water pore; 16. a mounting ring; 17. a sealing groove; 171. a seal ring; 18. a flange; 181. a fixing hole; 2. a waterproof hammer case; 21. a cavity; 22. a slider; 221. a magnet slot; 2211. a sliding magnet; 23. fixing a magnet; 222. a piston plate; 223. mounting grooves; 2231. a seal ring; 224. positioning the bump; 3. a polytetrafluoroethylene layer.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses ball valve casting. Referring to fig. 1 and 2, the ball valve casting includes the valve casing 1 that is used for installing valve ball, valve rod, offers the ball chamber 12 that is used for placing the valve ball in the valve casing 1, link up the water course 13 of offering the confession fluid circulation on the valve casing 1, and the chamber wall of ball chamber 12 link up and offers the valve opening 14 that the confession valve rod wore to establish, and the cladding has polytetrafluoroethylene layer 3 on 13 inner walls of water course, the 12 inner walls of ball chamber.

Referring to fig. 2, the diameter of the water channel 13 is smaller than that of the ball cavity 12, flanges 18 are respectively formed at two ends of the water channel 13, a plurality of fixing holes 181 for bolts to pass through are formed in the flanges 18, the water channel 13 penetrates through the middle of the flanges 18, and the end of the pipeline is fixedly connected with the valve housing 1 through the flanges 18.

Referring to fig. 2, a positioning shaft 121 is fixed on the inner wall of the ball cavity 12, the positioning shaft 121 faces the valve hole 14, and the axis of the positioning shaft 121 coincides with the axis of the valve hole 14. Set up the locating hole that supplies location axle 121 to wear to establish on the valve ball, when the valve ball was installed in ball chamber 12, location axle 121 wore to locate in the locating hole and rotate with the ball valve and be connected to stability when improving the ball valve and rotating.

Referring to fig. 2, a seal groove 17 is formed in the inner wall of the valve hole 14, the seal groove 17 is formed in the circumferential direction of the inner wall of the valve hole 14, a seal ring 171 is fixed in the seal groove 17, when the valve shaft is inserted into the inner wall of the valve hole 14, the valve shaft is inserted into the seal ring 171, and the outer wall of the valve shaft is abutted against the inner ring wall of the seal ring 171 to establish a rotary seal relationship, so that fluid in the water channel 13 is not prone to leaking from the valve hole 14.

Referring to fig. 3, a water hole 15 is formed through the inner wall of the water channel 13, an installation ring 16 is integrally formed on the outer wall of the valve housing 1, the axis of the water hole 15 coincides with the axis of the installation ring 16, and the aperture of the water hole 15 is smaller than the inner diameter of the installation ring 16. The outer wall of the valve casing 1 is fixed with a waterproof hammer casing 2, and a cavity 21 is arranged in the waterproof hammer casing 2. 2 one ends of waterproof hammer shell are uncovered state, are equipped with the screw thread on the inner wall of collar 16, are equipped with the screw thread on the outer wall of 2 opening ends of waterproof hammer shell, the inner wall of collar 16 and the outer wall threaded connection of waterproof hammer shell 2 to be fixed in the outer wall of valve casing 1 with waterproof hammer shell 2.

Referring to fig. 3, the water hole 15 is communicated with the cavity 21, and a sliding block 22 and a fixed magnet 23 are sequentially arranged in the cavity 21 along a direction away from the water hole 15. The sliding block 22 includes a piston plate 222 and a sliding magnet 2211, the surface of the piston plate 222 facing the fixed magnet 23 is opened with a magnet groove 221, the sliding magnet 2211 is fixed in the magnet groove 221, and the surface of the sliding magnet 2211 facing the fixed magnet 23 is flush with the surface of the piston plate 222. An installation groove 223 is formed in the circumferential direction of the piston plate 222, a sealing ring 2231 is fixed in the installation groove 223, and the piston plate 222 establishes a sliding sealing relationship with the cavity wall of the cavity 21 through the sealing ring 2231.

Referring to fig. 3, the fixed magnet 23 is fixed to the inner bottom wall of the cavity 21, the fixed magnet 23 faces the sliding magnet 2211, and the magnetic poles of the fixed magnet 23 and the sliding magnet 2211 facing each other are the same, i.e., the magnetic force between the fixed magnet 23 and the sliding magnet 2211 is repulsive, and the sliding block 22 is driven by the magnetic force to be away from the fixed magnet 23 and abut against the water hole 15.

Referring to fig. 3, a positioning protrusion 224 matching with the water hole 15 is fixed on the surface of the piston plate 222 facing the water hole 15, the positioning protrusion 224 faces the water hole 15, and the repulsive force of the fixed magnet 23 to the sliding magnet 2211 drives the positioning protrusion 224 to block the water hole 15, so as to seal the water hole 15.

The implementation principle of this application embodiment ball valve casting part does: during this ball valve casting installation, the valve ball is installed in ball chamber 12, and the valve rod is worn to locate in valve opening 14 and its tip is fixed with the ball valve, and flange 18 and pipe connection are passed through to the both ends of valve casing 1 fixed. At the moment when the ball valve is opened, the pressure in the pipe cavity is suddenly increased, and the pressure drives the sliding block 22 from the water hole 15 to move towards the direction close to the fixed magnet 23 along the inner wall of the cavity 21, so that the pressure in the water channel 13 is buffered, and the water hammer phenomenon is avoided.

The magnetic force of the sliding magnet 2211 and the fixed magnet 23 repel each other, and the magnetic force drives the sliding block 22 to move towards the water hole 15, so that the positioning bump 224 blocks the water hole 15, and the magnet is reset.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a ball valve casting, includes valve casing (1), inside ball chamber (12) that are used for placing the valve ball that is equipped with of valve casing (1), set up water course (13) that supply rivers pass through on valve casing (1), valve casing (1) is run through in water course (13), water course (13) and ball chamber (12) intercommunication, ball chamber (12) inner wall link up and is equipped with valve opening (14) that supply the valve rod to pass, its characterized in that: the water hammer is characterized in that a waterproof hammer shell (2) is arranged on the valve shell (1), a cavity (21) is arranged in the waterproof hammer shell (2), a water hole (15) is formed in the valve shell (1), and the cavity (21) is communicated with the water channel (13) through the water hole (15); along the direction of keeping away from water hole (15), be equipped with in proper order in cavity (21) sliding block (22), decide magnet (23), sliding block (22) are including sliding magnet (2211), sliding magnet (2211) is relative with deciding magnet (23) homopolar, the circumference outer wall and cavity (21) inner wall sliding seal of sliding block (22) are connected.

2. The ball valve casting of claim 1, wherein: sliding block (22) still include piston plate (222), sealing washer (2231), the circumference outer wall of piston plate (222) is equipped with mounting groove (223), sealing washer (2231) sets up in mounting groove (223).

3. The ball valve casting of claim 2, wherein: the surface of the piston plate (222) facing the water hole (15) is provided with a positioning lug (224) matched with the water hole (15), and the positioning lug (224) is opposite to the water hole (15).

4. The ball valve casting of claim 3, wherein: valve casing (1) outer wall is equipped with collar (16), collar (16) set up along the circumference in water hole (15), the outer wall of waterproof hammer shell (2) and the inner wall threaded connection of collar (16).

5. The ball valve casting of claim 1, wherein: the inner wall of the valve casing (1) is provided with a polytetrafluoroethylene layer (3).

6. The ball valve casting of claim 1, wherein: and a sealing ring (171) is arranged on the inner wall of the valve hole (14) in the circumferential direction.

7. The ball valve casting of claim 1, wherein: flanges (18) are arranged at two ends of the water channel (13), and fixing holes (181) for the fixing pieces to penetrate through are formed in the flanges (18).

8. The ball valve casting of claim 1, wherein: a positioning shaft (121) is arranged in the ball cavity (12), and the axis of the positioning shaft (121) is overlapped with the axis of the valve hole (14).